I am glad that you brought this point up in blog form. My opinion as a Jew who had family in Europe during the Holocaust is why not have a "Genocide day" in England and all countries. I think it is important to remember the genocide inflicted on all people. I would be the first one to support a genocide day in this country that remembers among others the genocide inflicted on Native Americans, despite the fact that I am not a Native American.
Palestinian teen arrested for allegedly rioting in East Jerusalem (Haaretz)
from the article: Who will come to Silvan?